Off-grid living in Massachusetts: a property guide
For a house beyond public water and sewer, the local board of health sits at the center of two different questions: whether the Title 5 system works and whether the private well meets the town’s rules.
The municipal health desk
One office. Two independent approvals.
Wastewater / Title 5
MassDEP sets the statewide onsite-sewage framework. Local boards of health administer and enforce it, review soil and percolation work, issue construction permits and receive completion documents. Local requirements may add to the state minimum.
Open the state Title 5 hubPrivate water
Massachusetts does not use one uniform statewide private-well permitting program for individual homes. Municipal boards of health regulate local well siting, construction and water quality, using local rules that may draw on MassDEP’s guidelines.
Read the private-well guidanceBuying an existing house
The closing file can expose the site’s next project.
A Title 5 inspection is generally required within two years before a sale, or three years when qualifying annual pumping records exist. The inspection is not a warranty of future performance. Read it with the approved design, bedroom count, disposal area, reserve area and any conditional pass or repair obligation.
Do not merge two conclusions: a passing transfer inspection does not establish that an addition is approvable, and a productive well does not establish that its location or quality satisfies the town.
New build paper trail
From dirt test to certificate.
- 01 Confirm zoning, legal lot status and dwelling classification with the municipality.
- 02 Have the soil evaluation and percolation work documented on the current Title 5 forms.
- 03 Coordinate septic layout, reserve area and the locally regulated well before fixing the house footprint.
- 04 Secure disposal-system construction and building permits; preserve required inspections.
- 05 Obtain the certificate of compliance and the municipal sign-offs required for occupancy.
Private-well questions
Ask the town for its actual regulation.
MassDEP’s guidance is not a substitute for the board of health’s bylaw or regulation. Before relying on a well, obtain the town’s permit process, isolation distances, construction standard, yield requirement, sampling panel and rules for connection where a public supply is available.
Massachusetts buyer file
Request documents, not reassurance.
- zoning use and dimensional confirmation
- deed, easements and private restrictions
- Title 5 design, permit and as-built
- latest inspection and pumping history
- private-well permit and completion record
- raw and treated water results
- wetland, flood and conservation review
- building permit and occupancy record
Evidence ledger
Official Massachusetts sources
Reviewed September 26, 2026. State sources establish the baseline; the municipal board of health, building department, zoning office and conservation commission decide parcel-level questions.
- MA1Septic Systems — Title 5
Massachusetts Department of Environmental Protection · State onsite-wastewater program, inspections and approvals
- MA2Title 5 and real estate
Massachusetts Board of Registration of Real Estate Brokers and Salespersons · Transfer inspections, change of use and local enforcement
- MA3Title 5 forms
Massachusetts Department of Environmental Protection · Soil evaluation, construction permit and certificate forms
- MA4Private Well Guidelines
Massachusetts Department of Environmental Protection · Model guidance for locally regulated private wells
- MA5Private Well Guidelines — PDF
Massachusetts Department of Environmental Protection · Siting, yield, quality and local-board recommendations
- MA6Massachusetts State Building Code — 780 CMR
Massachusetts Department of Public Safety · Current statewide construction-code resources